Mrs. Sun Li was definitely not the only mastermind behind the scenes; Wang Lan had figured this out during his time in the Nine-layer Pagoda. Sun Li alone could not have orchestrated such a skillful arrangement.
But her death had definitively severed any possibility of Wang Lan continuing his investigation. Even if he had suspects, he wouldn't be able to find a shred of evidence.
Wang Lan thought he would hate Mrs. Sun Li for her deception and betrayal. However, at this moment, even though his emotions were incredibly complex and heavy, there wasn't the slightest hint of hatred in his heart.
She had set up a murderous scheme to kill both Wang Lan and Yu Ruoyun. Yet, it was also she who had imparted all her life's learning. Leaving aside her theoretical knowledge of Star Martial Toxins and her wealth of experimental data, Universal Decomposition alone was enough for Wang Lan to sincerely regard Sun Li as his teacher.
